Adjustable fastener for hinged closures.



J. JENKS. ADJUSTABLE PASTENER FOR HINGE!) GLOSURES.

APPLICATION FILED JULY 19. 1909.

Patented Sept. 14, 1909.

7 snue'nlfoz ,John Jenks.

UNITED STATES PATENT OFFICE- JOHN JENKS, OF SAN DIEGO, CALIFORNIA.

ADJUSTABLE FASTENER FOR HINGED GLOSURES.

be understood that. the adjustable astener isadapted for use upon doors as well as upon windows, and may even be used upon hinged transoms if desired, to limit the degree to which said transoms may be opened.

Many forms of casement window fasten: ings have been employed up to the present time. Some of the devices employed are flexible and some are rigid. 4 The flexible devices are open to the objection that while they limit the outward movement of the easement window, they do not prevent its in ward movement, and consequently a sudden gust of wind is likely to slam the window wlth such force as to break the glass; while the rigid forms are open that while they limit the movement of the window in both directions. they project. within the room in an unsightly manner when the window is closed.

It is the object of the present invention to provide a structure comprising a chain extending between the window jamb and the easement window, that portion of the chain between the jamb and the window being automatically rendered rigid, and that portion of the chain within the room being automatically rendered flexible, whereby the advantages of both the rigid and flexible structures are had. I

Further objects and advantages of the invention will be set forth in the detailed description which now follows:

In the accompanying drawing, Figure 1 is a horizontal section through dow and its frame, illustrating the invention applied thereto, Fig. 2 is a detail front view of a clamp adapted to be secured to the window frame or jamb, tion of a member adapted. to be secured to the window sash, Fig. 4 isa side view of the clamp shown in Fig. 2., Figs. 5 and 6 are detail views of a pair of members, which, when chain, (see Figs. 7 and 10) enters.

10 and ll and pivotally to the objection a casement win-- Fig. 3 is an-edge eleva-.

Specification of Letters Patent. Patented Sept, 14, 1909,. Application filed July 19, 1909. a

Serial N0. 508,422.

connected, form a link of the chain, Fig. 7 is a view of an end link member of said chain. Fig. 8 is a side elevation of a swinging portion of a clamp hereinafter described, Fig. 9 is an elevation of a fixed member of said clamp, Fig. 10 is a side elevation of a portion of the chain employed, and, Fig. 11 is a cross section upon line m-a3 of Fig. 10.

Like numerals designate corresponding parts in all of the figures of the drawing.- v Referring to the drawing, 'thenumeral 5 designates a casement window frame, and 6 the sash of a casement window which is hingedly connected to the frame at 7 This sash is provided with the usual glass 8. Se cured to the sash 6 is a keeper plate 9, (see Figs. 1 and 3.) This keeper plate carries a 10 between which, a

pair of perforated ears perforated car 11 of the end link 12 of the A pinl passes through ears connects the end of the chain to the keeper plate 9 and to the sash 6. A second keeper plate 14 is secured to the window frame 5 by screws 15. This keeper plate has a'hollow upstanding boss 16 within which rocks'tho base bar 1 (see Fig. 8) of'a ybke 19. This base bar 17. carries a pin 20 which extends through an elongated slot 21 of the boss 16. A screw 22 having a socket 23 formed in its lower end is threaded into said yoke in aline ment with the pin 20 so that when said screw is screwed down, the pin will enter the socket 23.

As is best illustrated in Figs. 5, 6, 10, and 11, each chain link comprises a pair of members 24 and 25. The lugs 26 25 are bent into engagement with-the 1 e' ces'sed portions 27 of the member 24, while the lugs 28 of the member 24 are bent into engagement withthe recessed portions 29 of the member 25. It will therefore be seen that when these two members are thus clamped together by the interengagmg lugs, a complete chain link-is provided having at one end-an angular opening 30 formed therethrough and at the opposite end another angular opening 31 through which the end portions of corresponding-links pass, after the manner of an ordinarychairu .But this chain is peculiar. inthat the 'ends of the of the member links at one side are offset from the plane of the opposite side'of the link so that the ends of these links interlock as shown in Figs. 10.

2, A esa-13o engaging with each other and limiting the twisting movement of the links with relation to each other in one direction. By referring to Fig. 1, it will be seen that this oil'- set structure of the links produces a structure of such nature that when all the-links are in vertical alinement with each other,

' endwise movement of the links with relation to each other is, positively prevented and what is substantially a rigid member isthe' result. The members 24' are 'provided with openin 33. The chain is passed through the yo 619 and the desired opening 33 is displacement.

engaged with pin-20 after which the screw 22 is screwed down to prevent accidental It is of course apparent that the angle of the rigid connecting member, with relation to theface of the window frame or-jamb to which the clamp is se-- cured, changes slightly as the window is opened or closed. This change in the angle of the rigid member is accommodated by the also e seen that it is only .thelinks that are outside of the clamp that are held in this rigid relation to each other forthis rigid L tion is attained by=the fact that the links are held against twisting with "relation to each other. Those links that lie outside of the clamp may be given a quarter turn with relation to each other, or twisted at right angles with relation to'each other as indicated by'the link 35 in Fig. 1, and it is then apparent that this link and any links carried thereby W111 hang down instead of projecting into the room.

While the elements shown and described are well adapted to serve the purposes for which they are intended, it is to be understood that the invention is not limited to the precise construction set forth, but includes within itspurview such changes as maybe I made within the claims.

Having described my invention, what I scope of the appended claim is:

as a whole swinging mounting of the yoke 19. It will,

1. a device of the character described,

the combination with a supporting frame,

and a hinged closure member, of means for adjustably' connecting said hinged closure member to said frame, said means comprising a clamp carried by said frame and a chain connected tosaid closure and adapted to be engaged by said clamp, the links of said chain beingheld in rig1d relation to each other between said clamp and said c1osure, but being in non-rigid relation to each other beyond said clamp.

2.v In a device of the character described,

the combination with a supporting frame and a hinged closure, of a clamp carried by.

said supportingframe, said clamp comprismg. a swingmg yoke, a clamplng member carried b'y said yoke, and a connecting member for connecting said'hinged cl'osure to said clamp, said connecting member bein automatically rigid between said clamp an said hinged closure and flexible beyond said clamp. I x

3. A connecting member for a hmged closure comprising a series of interengaging links, said links being held against endwise' movement with relation to each other, while .theyare inthe same vertical plane.

bination with a clamp comprising a 'swinging yoke, a pin moving with said yoke and adapted. to engafe any one of-a plurality of openings forme ada ted to engage with said pin, substantial y as shown and described. v

I Intestimony glxwf' I' afiix my signature it-nesses.

JOHN JENKS." v

in presence of two Witnesses:

ALBERT MILLs, -G. U. FRY.

in said chaindmks, and a. clamping screw carried by said yoke and 

